This Pesto Spaghetti Squash Casserole is an easy, healthier version of lasagna!  Delicate strands of spaghetti squash are layered with pesto ricotta, mozzarella and marinara.  This 10-ingredient spaghetti bake is budget-friendly, simple to prepare and a meal the entire family will love!  (Healthy, Vegetarian, Gluten-free)

Pesto Spaghetti Squash Casserole
This baked pesto spaghetti squash casserole is a delicious and healthy alternative to lasagna!
Delicate strands of spaghetti squash are layered with thick and chunky marinara sauce, creamy pesto fused ricotta, melty mozzarella and freshly grated parmesan cheese!  Finished with a generous sprinkling of pungent, fresh basil and more cheese, this spaghetti squash lasagna is robust and rich in flavor with significantly less calories than the traditional dish! Bonus – this casserole is simple to prepare!  With only 10 ingredients and 20 minutes of hands on preparation, you can have a hearty and healthy weeknight meal your entire family will love and devour!

What is spaghetti squash casserole"
Spaghetti squash casserole is an easy and healthier version of hearty classic spaghetti casserole.  A flavorful tomato sauce is layered with cooked spaghetti squash and cheese, and then baked in the oven until hot and bubbly.  Squash casserole can be made with meat sauce or plain tomato sauce for vegetarians.
What to serve with spaghetti casserole"
Since squash casserole is a heartier main dish, it goes best with li...